> For the complete documentation index, see [llms.txt](https://doc.cess.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.cess.network/developer/cess-sdk/sdk-golang/chain_related/system.md).

# System

This section describes the use of the interface to the system pallet on CESS chain, which is about system.

The list of interfaces is as follows:

* [QueryBlockNumber](/developer/cess-sdk/sdk-golang/chain_related/system/queryblocknumber.md)
* [QueryAccountInfo](/developer/cess-sdk/sdk-golang/chain_related/system/queryaccountinfo.md)
* [QueryAccountInfoByAccountID](/developer/cess-sdk/sdk-golang/chain_related/system/queryaccountinfobyaccountid.md)
* [QueryAllAccountInfo](https://github.com/CESSProject/doc-v2/blob/main/developer/cess-sdk/sdk-golang/chain_related/system/QueryAllAccountInfo.md)